CN111045250A - Light conversion structure and display device - Google Patents
Light conversion structure and display device Download PDFInfo
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- CN111045250A CN111045250A CN201911239864.8A CN201911239864A CN111045250A CN 111045250 A CN111045250 A CN 111045250A CN 201911239864 A CN201911239864 A CN 201911239864A CN 111045250 A CN111045250 A CN 111045250A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
- G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133621—Illuminating devices providing coloured light
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- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Led Device Packages (AREA)
- Optical Filters (AREA)
Abstract
The application provides a light conversion structure and a display device, wherein the light conversion structure comprises a substrate layer, an intermediate layer and a light conversion layer which are sequentially arranged, and the substrate layer has a first refractive index; the intermediate layer has a second refractive index; the light conversion layer has a third refractive index, the light conversion layer comprises a first light conversion unit, a second light conversion unit and a third light conversion unit, and the colors of light emitted by the first light conversion unit, the second light conversion unit and the third light conversion unit through light conversion are different; the second refractive index is greater than the first refractive index, and the second refractive index is greater than the third refractive index. The second refractive index is higher than the first refractive index, so that the intermediate layer and the light conversion layer form a light reflection interface, when the light is totally internally reflected, evanescent waves entering the light conversion layer can excite the light conversion layer to radiate fluorescence, and the light conversion efficiency of the light conversion layer is improved.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to a light conversion structure and a display device.
Background
At present, Quantum Dot (QD) display technologies are rapidly developed, and display products such as backlights, color film substrates, organic light emitting diode display panels and the like have appeared, and the core technology of the display products is a quantum dot light conversion technology. The quantum dot display achieves high color gamut effect by utilizing narrow emission spectrum width after light conversion. Because the quantum dots have low light conversion efficiency, the quantum dot film layer needs to be set to be thicker (micron order) in the device to improve the light conversion rate, and simultaneously, redundant blue light is absorbed.
Disclosure of Invention
The embodiment of the application provides a light conversion structure and a display device to solve the technical problem that in the existing display product, the thickness of a quantum dot film layer is thick on the premise of meeting the high color gamut display effect.
The embodiment of the present application provides a light conversion structure, which is used for light emitting or/and displaying, and the light conversion structure includes:
a base layer, the base layer being a light incident side, the base layer having a first refractive index;
an intermediate layer disposed on the base layer, the intermediate layer having a second index of refraction; and
the light conversion layer is arranged on the intermediate layer and has a third refractive index, the light conversion layer comprises a first light conversion unit, a second light conversion unit and a third light conversion unit, and the colors of light emitted by the first light conversion unit, the second light conversion unit and the third light conversion unit through light conversion are different;
the second refractive index is greater than the first refractive index, and the second refractive index is greater than the third refractive index.
In the light conversion structure of the embodiment of the present application, the first refractive index is less than or equal to the third refractive index.
In the light conversion structure of the embodiment of the application, the material of the light conversion layer is one of quantum dots, phosphor powder or perovskite.
In the light conversion structure of the embodiment of the present application, the thickness of the light conversion layer is between 190 nm and 240 nm.
In the light conversion structure of the embodiment of the present application, the thickness of the light conversion layer is 200 nm.
In the light conversion structure of the embodiment of the present application, the first light conversion unit emits red light, the second light conversion unit emits green light, and the third light conversion unit emits blue light.
The application also relates to a display device, wherein the display device comprises a backlight module and a liquid crystal box, the liquid crystal box is arranged on the light emergent side of the backlight module, the backlight module comprises a light source and a light conversion structure arranged on the light emergent side of the light source, and the light source emits blue light; the light conversion structure includes:
a base layer having a first index of refraction;
an intermediate layer disposed on the base layer, the intermediate layer having a second index of refraction; and
the light conversion layer is arranged on the intermediate layer and has a third refractive index, the light conversion layer comprises a first light conversion unit, a second light conversion unit and a third light conversion unit, and the colors of light emitted by the first light conversion unit, the second light conversion unit and the third light conversion unit through light conversion are different;
the second refractive index is greater than the first refractive index, and the second refractive index is greater than the third refractive index.
In the display device of the embodiment of the present application, the first refractive index is less than or equal to the third refractive index.
In the display device according to the embodiment of the present application, the material of the light conversion layer is one of quantum dots, phosphor, or perovskite.
In the display device according to the embodiment of the present application, the first light conversion unit is a red light conversion unit, the second light conversion unit is a green light conversion unit, and the third light conversion unit is a blue light conversion unit.
In the display device of the embodiment of the application, the liquid crystal box comprises an array substrate, a color film substrate and a liquid crystal layer, wherein the liquid crystal layer is arranged between the array substrate and the color film substrate; the color film substrate comprises a substrate and an electrode layer arranged on the substrate.
In the display device of the embodiment of the present application, the thickness of the light conversion layer is between 190 nm and 240 nm.
The utility model provides a light conversion structure regards as the income light side with the stratum basale to light conversion layer is as the play light side, and adopts the second refractive index to be greater than the design of first refractive index, makes intermediate level and light conversion layer form the light reflection interface, and when utilizing the light to take place the total internal reflection, the light gets into the evanescent wave of light conversion layer and can arouse light conversion layer radiation fluorescence. The light conversion efficiency of the light conversion layer is thus improved by the action of the evanescent wave.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments are briefly described below. The drawings in the following description are only some embodiments of the present application, and it will be obvious to those skilled in the art that other drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a light conversion structure according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a liquid crystal cell of a display device according to an embodiment of the present disclosure.
Detailed Description
Refer to the drawings wherein like reference numbers refer to like elements throughout. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a light conversion structure according to an embodiment of the present application. The light conversion structure 100 of the embodiment of the present application is used for light emission or/and display. In the present embodiment, when the light conversion structure 100 is applied to the display field, the light received by the light conversion structure is preferably a light with a narrow spectral width, such as blue light. When light is radiated to the light conversion structure 100 of the present embodiment, the light conversion structure 100 can emit light with a narrow spectral width to obtain a high color gamut effect. The optical conversion structure 100 of the embodiment may be applied to a backlight module, a color film substrate, a liquid crystal display panel, an organic light emitting diode display panel, an LED display panel, and the like.
The light conversion structure 100 of the present embodiment includes a base layer 11, an intermediate layer 12, and a light conversion layer 13, which are sequentially disposed.
The base layer 11 is the light incident side. The substrate layer 11 has a first refractive index n 1. The intermediate layer 12 is disposed on the base layer 11. The intermediate layer 12 has a second refractive index n 2. In some embodiments, the light incident side of the light conversion structure 100 may also be on two sides thereof, i.e., the side of the light conversion structure 100 is used as the light incident side, such as the side of the intermediate layer 12 is used as the light incident side.
The light conversion layer 13 is the light exit side. The light conversion layer 13 is disposed on the intermediate layer 12. Light conversion layer 13 has third refractive index n 3. The light conversion layer 13 includes a first light conversion unit 131, a second light conversion unit 132, and a third light conversion unit 133. The first light conversion unit 131, the second light conversion unit 132, and the third light conversion unit 133 emit light of different colors.
The second refractive index n2 is greater than the first refractive index n 1. The second refractive index n2 is greater than the third refractive index n 3.
In the light conversion structure 100 of the present embodiment, the second refractive index n2 is set to be greater than the first refractive index n1, and when the incident angle of a light ray is greater than the critical angle for total internal reflection, the light ray undergoes total internal reflection at the interface of the intermediate layer 12 and the light conversion layer 13. However, in fact, the light energy of the light is radiated to the light conversion layer 13 and before being reflected, enters the light conversion layer 13 to a certain depth, and the light wave propagating into the light conversion layer 13 is an evanescent wave. At this time, the evanescent wave excites the photoconversion layer 13, causing the photoconversion layer 13 to radiate fluorescence. For example, if the first light conversion unit is formed of a red material, red light is emitted.
Optionally, the material of the light conversion layer 13 is one of quantum dots, phosphor powder or perovskite. In the light conversion layer 13 of the present embodiment, the material of the light conversion layer 13 is quantum dots. And the depth of the evanescent wave in the quantum dot film layer (the light conversion layer 13) is about 200 nm. Therefore, the thickness of the quantum dot film layer (the light conversion layer 13) can be set to be between 190 nm and 240 nm. Preferably, the thickness of the light conversion layer 13 is 200 nm.
Therefore, compared to the quantum dot film used in the display field in the prior art, the light conversion structure 100 of the embodiment sets the second refractive index n2 to be greater than the first refractive index n1, thereby reducing the required thickness of the quantum dot film.
In addition, in the light conversion structure 100 of the present embodiment, after the light conversion with the light conversion layer 13, the remaining light returns to the intermediate layer 12 according to the law of reflection, and since the second refractive index n2 is set to be greater than the third refractive index n3, the reflected light is totally internally reflected at the interface between the intermediate layer 12 and the substrate layer 11, and the light is guided to the light conversion layer 13 again, so that the light conversion layer 13 is excited for the second time, and the utilization rate of light is improved.
Further, the first refractive index n1 is less than or equal to the third refractive index n 3. With this arrangement, it is prevented that a very small portion of light reflected from the interface of the intermediate layer 12 and the light conversion layer 13 is transmitted through the base layer 11. That is, it is ensured that the light rays reflected from the interface of the intermediate layer 12 and the light conversion layer 13 are totally internally reflected at the interface of the intermediate layer 12 and the substrate layer 11, and a light guiding effect similar to a slab waveguide is formed, further improving the utilization rate of the light rays.
In the light conversion structure 100 of the embodiment of the present application, the first light conversion unit 131 emits red light, the second light conversion unit 132 emits green light, and the third light conversion unit 133 emits blue light. Specifically, the material of the first light conversion unit 131 is red quantum dots, the material of the second light conversion unit 132 is green quantum dots, and the material of the third light conversion unit 133 is blue quantum dots.
Referring to fig. 2, a display device 200 according to an embodiment of the present disclosure includes a backlight module 21 and a liquid crystal cell 22. The liquid crystal cell 22 is disposed on the light exit side of the backlight module 21. The backlight module 21 includes a light source 211 and a light conversion structure 212 disposed at a light emitting side of the light source 211. The light source 211 emits blue light.
The light converting structure 212 is a side-entry light structure. The light conversion structure 212 includes a base layer, an intermediate layer, and a light conversion layer, which are sequentially disposed.
The base layer has a first index of refraction n 1. The intermediate layer is disposed on the base layer. The intermediate layer has a second refractive index n 2.
The light conversion layer is a light emitting side. The light conversion layer is disposed on the intermediate layer. The light conversion layer has a third refractive index n 3. The light conversion layer includes a first light conversion unit, a second light conversion unit, and a third light conversion unit. The first light conversion unit, the second light conversion unit and the third light conversion unit emit light with different colors.
The second refractive index n2 is greater than the first refractive index n 1. The second refractive index n2 is greater than the third refractive index n 3.
Optionally, the material of the light conversion layer is one of quantum dots, phosphor powder or perovskite. In the display device 200 of the present embodiment, the material of the light conversion layer is quantum dots. And the depth range of the evanescent wave in the quantum dot film layer (light conversion layer) is about 200 nm. Therefore, the thickness of the quantum dot film layer (light conversion layer) can be set to be between 190 nm and 240 nm. Preferably, the thickness of the light conversion layer is 200 nm.
Further, the first refractive index n1 is less than or equal to the third refractive index n 3.
In the display device 200 of the embodiment of the application, the first light conversion unit is a red light conversion unit, the second light conversion unit is a green light conversion unit, and the third light conversion unit is a blue light conversion unit.
The first light conversion unit emits red light, the second light conversion unit emits green light, and the third light conversion unit emits blue light. Specifically, the first light conversion unit is made of red quantum dots, the second light conversion unit is made of green quantum dots, and the third light conversion unit is made of blue quantum dots.
Referring to fig. 3, the liquid crystal cell 22 includes an array substrate 221, a color filter substrate 222, and a liquid crystal layer 223. The liquid crystal layer 223 is disposed between the array substrate 221 and the color filter substrate 222. The color filter substrate 222 includes a substrate and an electrode layer disposed on the substrate. The backlight module 21 has the light conversion structure 212, and the light conversion structure 212 has the function of filtering light rays to emit three color light. Therefore, the function of the light conversion layer in the light conversion structure 212 is equivalent to that of the color film layer of the color film substrate in the prior art, that is, the color film substrate 222 of the display device 200 of the embodiment does not include the color film layer.
Therefore, the light conversion structure 212 is used as a backlight, which not only saves the light guide plate, but also replaces the color film layer of the color film substrate in the prior art.
The light conversion structure 212 of the display device 200 of the present embodiment has the same structure as the light conversion structure 100 of the above embodiment, and please refer to the description of the light conversion structure 100 of the above embodiment for details, which will not be described herein again.
As described above, it will be apparent to those skilled in the art that various other changes and modifications can be made based on the technical solution and concept of the present application, and all such changes and modifications shall fall within the scope of the appended claims.
Claims (10)
1. A light converting structure for use in lighting or/and displays, said light converting structure comprising:
a base layer having a first index of refraction;
an intermediate layer disposed on the base layer, the intermediate layer having a second index of refraction; and
the light conversion layer is arranged on the intermediate layer and has a third refractive index, the light conversion layer comprises a first light conversion unit, a second light conversion unit and a third light conversion unit, and the colors of light emitted by the first light conversion unit, the second light conversion unit and the third light conversion unit through light conversion are different;
the second refractive index is greater than the first refractive index, and the second refractive index is greater than the third refractive index.
2. The light converting structure of claim 1, wherein the first refractive index is less than or equal to the third refractive index.
3. The light converting structure according to claim 1, wherein the material of the light converting layer is one of quantum dots, phosphor, or perovskite.
4. The structure of claim 1, wherein the thickness of the light conversion layer is between 190 nm and 240 nm.
5. A display device is characterized by comprising a backlight module and a liquid crystal box, wherein the liquid crystal box is arranged on the light emergent side of the backlight module, the backlight module comprises a light source and a light conversion structure arranged on the light emergent side of the light source, and the light source emits blue light; the light conversion structure includes:
a base layer having a first index of refraction;
an intermediate layer disposed on the base layer, the intermediate layer having a second index of refraction; and
the light conversion layer is arranged on the intermediate layer and has a third refractive index, the light conversion layer comprises a first light conversion unit, a second light conversion unit and a third light conversion unit, and the colors of light emitted by the first light conversion unit, the second light conversion unit and the third light conversion unit through light conversion are different;
the second refractive index is greater than the first refractive index, and the second refractive index is greater than the third refractive index.
6. The display device according to claim 5, wherein the first refractive index is less than or equal to the third refractive index.
7. The display device according to claim 5, wherein a material of the light conversion layer is one of a quantum dot, a phosphor, or a perovskite.
8. The display device according to claim 5, wherein the first light conversion unit is a red light conversion unit, the second light conversion unit is a green light conversion unit, and the third light conversion unit is a blue light conversion unit.
9. The display device according to claim 8, wherein the liquid crystal cell comprises an array substrate, a color film substrate and a liquid crystal layer, and the liquid crystal layer is arranged between the array substrate and the color film substrate; the color film substrate comprises a substrate and an electrode layer arranged on the substrate.
10. The display device according to claim 5, wherein the thickness of the light conversion layer is between 190 nm and 240 nm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239864.8A CN111045250A (en) | 2019-12-06 | 2019-12-06 | Light conversion structure and display device |
| PCT/CN2019/125558 WO2021109222A1 (en) | 2019-12-06 | 2019-12-16 | Light conversion structure and display device |
| US16/627,391 US11249336B2 (en) | 2019-12-06 | 2019-12-16 | Optical conversion structure and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239864.8A CN111045250A (en) | 2019-12-06 | 2019-12-06 | Light conversion structure and display device |
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| CN111045250A true CN111045250A (en) | 2020-04-21 |
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| CN201911239864.8A Pending CN111045250A (en) | 2019-12-06 | 2019-12-06 | Light conversion structure and display device |
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| Country | Link |
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| US (1) | US11249336B2 (en) |
| CN (1) | CN111045250A (en) |
| WO (1) | WO2021109222A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039009A (en) * | 2020-12-23 | 2022-02-11 | 广东聚华印刷显示技术有限公司 | Light conversion film, light conversion substrate, and light emitting diode |
| WO2022261945A1 (en) * | 2021-06-18 | 2022-12-22 | 京东方科技集团股份有限公司 | Display panel, display apparatus, and manufacturing method for display panel |
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2019
- 2019-12-06 CN CN201911239864.8A patent/CN111045250A/en active Pending
- 2019-12-16 WO PCT/CN2019/125558 patent/WO2021109222A1/en active Application Filing
- 2019-12-16 US US16/627,391 patent/US11249336B2/en active Active
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| US9274369B1 (en) * | 2012-10-30 | 2016-03-01 | Google Inc. | Seamless display with tapered fused fiber bundle overlay |
| US20160195773A1 (en) * | 2015-01-05 | 2016-07-07 | Samsung Display Co., Ltd. | Liquid crystal display |
| JP2017021295A (en) * | 2015-07-14 | 2017-01-26 | 大日本印刷株式会社 | Quantum dot sheet, backlight, and liquid crystal display |
| CN106405918A (en) * | 2015-07-31 | 2017-02-15 | 三星电子株式会社 | Display panel and display device having the same |
| CN108761896A (en) * | 2018-07-18 | 2018-11-06 | 明基材料有限公司 | polarizer |
| CN110459560A (en) * | 2019-07-26 | 2019-11-15 | 深圳市华星光电半导体显示技术有限公司 | A kind of quantum dot color filter, display panel and display device |
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| CN114039009A (en) * | 2020-12-23 | 2022-02-11 | 广东聚华印刷显示技术有限公司 | Light conversion film, light conversion substrate, and light emitting diode |
| CN114039009B (en) * | 2020-12-23 | 2023-09-22 | 广东聚华印刷显示技术有限公司 | Light conversion film, light conversion substrate, and light emitting diode |
| WO2022261945A1 (en) * | 2021-06-18 | 2022-12-22 | 京东方科技集团股份有限公司 | Display panel, display apparatus, and manufacturing method for display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| US11249336B2 (en) | 2022-02-15 |
| WO2021109222A1 (en) | 2021-06-10 |
| US20210405443A1 (en) | 2021-12-30 |
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Application publication date: 20200421 |